North American Contractors Association was established in 1985 to help contractors pass their difficult municipal and state examinations. We have licensed instructors and current and complete information. Choose the option that works best for you: take a class or work at home at your own pace with one of our comprehensive study courses. Over the years, we have helped thousands of contractors pass their exams and obtain their licenses. Whether you are an Asbestos, HVAC, Plumbing, Electrical, Highway, Building, Residential, Refrigeration, Fuel Piping, Roofing, Public Utility, Fire Protection, Hydronics, Water Sewer, Excavating Grading, Burglar Alarm, or Heating contractor, "We're here to help!"